Pictures of Paris Hilton in a Bikini, With Jason Shaw

Paris Hilton's Weekend: Ex Reunion, Hard Partying, and Bikini Rehab!

Paris Hilton only just split from Doug Reinhardt two weeks ago, but she's already moving on with a new, old guy — she spent Friday night out in LA with her former fiance Jason Shaw while Doug was across town on a date of his own. Paris was off to Las Vegas the next day, where she let loose on Saturday evening, showing off her moves and taking control of the mic during her night out clubbing at the Hard Rock with Lil Jon and her sister, Nicky. Yesterday, single Paris attracted lots of attention wearing fun bright pink to host Rehab at the pool with Nicky. Paris showed lots of skin in her string bikini just like this weekend's other Sin City party girl Kristin Cavallari.

To see more photos of Paris and Nicky in Las Vegas just read more.